在游乐节目中,选手需要借助悬挂在高处的绳飞越到水面的浮台上,小明和小阳观看后对此进行了讨论.如图1所示,他们将选手简化为质量m=60 kg的质点,选手抓住绳由静止开始摆动,此时绳与竖直方向的夹角α=53°,绳的悬挂点O距水面的高度H=3 m.不考虑空气阻力和绳的质 In the amusement program, players need to fly to the surface of the water by flying the rope suspended above the surface, this is discussed after Xiao Ming and Xiao Yang view, as shown in Figure 1, they will simplify the player mass m = 60 kg , The player grasps the rope and begins to swing from a standstill, where the angle between the rope and the vertical is α = 53 ° and the suspension point O of the rope is H = 3 m from the surface of the water, irrespective of the air resistance and the quality of the rope